The impeller clearance should be minimal when the impeller is tightened. Use the
adjusting washers to adjust the clearance.
3. Check that the impeller can rotate easily.
4. Install the lower diffuser.
5. Install the suction cover:
a) Press the suction cover against the impeller.
The impeller clearance should be minimal when the impeller is tightened. Use the
inner nuts to adjust the clearance.
b) Place the nuts on the studs. Tighten the nuts evenly all around.
6. Check that the impeller can rotate easily.
7. Install the strainer.
In order for the pump to perform at maximum capacity, the impeller must be adjusted
regularly.
Maintenance
Flygt 2125 Installation, Operation, and Maintenance Manual 33